D’Eliseo, Maurizio M. Quantum oscillator as a minimization problem. (English) Zbl 1527.81047 Eur. J. Phys. 42, No. 4, Article ID 045401, 19 p. (2021). MSC: 81Q05 74H80 26E60 31B10 39A06 47A10 35P15 PDFBibTeX XMLCite \textit{M. M. D'Eliseo}, Eur. J. Phys. 42, No. 4, Article ID 045401, 19 p. (2021; Zbl 1527.81047) Full Text: DOI
Pretz, Jörg Oscillations of a suspended slinky. (English) Zbl 1517.39006 Eur. J. Phys. 42, No. 4, Article ID 045008, 11 p. (2021). MSC: 39A21 39A12 34C15 70E55 PDFBibTeX XMLCite \textit{J. Pretz}, Eur. J. Phys. 42, No. 4, Article ID 045008, 11 p. (2021; Zbl 1517.39006) Full Text: DOI arXiv
Tsoy, E. N.; Umarov, B. A. Introduction to nonlinear discrete systems: theory and modelling. (English) Zbl 1396.39006 Eur. J. Phys. 39, No. 5, Article ID 055803, 13 p. (2018). MSC: 39A12 35Q55 82C20 82D25 82D77 35C08 97M50 PDFBibTeX XMLCite \textit{E. N. Tsoy} and \textit{B. A. Umarov}, Eur. J. Phys. 39, No. 5, Article ID 055803, 13 p. (2018; Zbl 1396.39006) Full Text: DOI arXiv Link